In the given figure, different zones of a
candle flame are marked by the letters P, Q, R and S.
Which of the following statements is/are incorrect?
P is the luminous zone and is the hottest part of candle flame.
In zone Q, there is inadequate supply of oxygen.
Zone R contains unburnt wax vapours produced by melting of wax.
In zone S, carbon monoxide burns with a yellow flame.
A(i) only
B(ii), (iii) and (iv) only
C(i) and (iv) only
D(i), (ii) and (iii) only